Wall board



C. PAYNE WALL BOARD Filed May l0, 1926 Patented' July 16, 1929.

viiivi'frieiii CAL'EB PAYNE, OF CHICAGO, ILLI FACTURING CO.,

Application tiled May 10,

The primary to provide` as an article wall board wl-iicli may length,width and thickii STA object of` t-liis invention is of manufacture, abe made in any ess, which has suiiicient strength and rigidity to enableit to be used for part-ition wa tural purposes, an

lls and other strucd which has its side edges protected and strengthenedto maintain their shape,

A -further object of the invention is to reii'ifo'rce and strengthen theside edges of a wall board to prevent them from breaking down inshipping and i n handling and to enable them to niake'sniooth aiid'iiushbutt joints in a wall.

In ltlie- 'accompanying' ing the invention,

Fig. 1 is drawings illustrata perspective view of a portion of wallboard embodying the invention F ig'. 2 is a transverse sectional viewfrom side edge to side edge of the wall board.

Fig. 3 is a view similar to Fig. 2 showing another form of the edgeReferring to the drawings protection. Y

the" wall board coinpiises a body 4 made of gypsum stucco or stuccocomposition or material, and lia-ving its sheets 5. 5 of paper or oterial. I protect the side by applying thereto a forms a protectivestrip heriiig to the body and 5, 5. This composition any other suitablesides protected by ther covering maedges of the board composition which6 on each edgeadthe paper covering consists of fibrous paper pulp and Iprefer to incorporate therewith some materialto make it. adhesive andalso some material to make it water resistant. I may mix gum arabic orrosin or other suitable adhesivemateri al with the paper pulp to make itstick t the body and to the covering 5; and I may' ot alumina with thestrips water resistant.

also mix sulphate the paper pulp to make I may also add an inert fillerto accelerate the set.,

This` paper pulp composition may beapplied to the board in any suitablemanner,

butI I prefer to, apply it wet and then iron it with hot irons,sutlicient plied to insure adhesion pressure being apof the paper pulpsti-ips to the body and covering 5 to orin a solid compact adhesivestructure. strips may be applied upon/ the bod)v and the edges thecovering sheets being The the edges of of the covering 5, Hush with thebody,

BOARD.

192s. serial No. 167,853.

as shown in Fig. 2, or

cesse-d at 7 to lie within t-he edges ofthe 55 rss PATENT orifice.'

NOIS, ASSIGNOE TO GYPSUM ENGINEERING & MANU- OF CHICAGO, ILLINOIS, ACORPORATION OF ILLINOIS.

the body may be recoverinfY sheets 5 so that the paper pulp rf strips will lie upon the edges of the. body and "ithin and between the edgeso'fthe covering sheets as well as upon t covering sheets as shown Myinvention provides he edges of the at S in Fig, 3.

a strong and sub- -stantialwall board which is reinforced andstrengthened atits side edges to withstand rough usage iii shipping andin handling.

The side edges of tie maintained iii a regu so that a fiush butt] twowall boards are laid side by a wall. Ii`uithernioie, edges a un insurethat the w3 iforni thickness throughoutits area wall board will be larfinished condition oint. can be made when n side to form the reinforcedside ll boardgvill be of when the board is applied to a wall and thus itis possible to board having a uni hollows or depressions.

produce awall v'v forni surface free from ith wall I have shown anddescribed the invention lin simple foi-ins in the ings, but it is to bemay be made inat body and in the niate covering and that ot made withinthe scope claims.

I claim 1. fall board understood other he material forming theconipri'sing/ a body, ing material on the sides of the bo accompanyingdrawchanges ial forming the side lier changes may be of the followingcoverand a protective strip of paper pulpcoinposition on the side edgeof the board `o edges of the side coverings. n

rising a body, covering 2. IVall board comp 4materia-l on the sides oflying 3. material on the sides of verlying the the body,'and a proulpcomposition on said strip ovei'-, overings and adbody, covering thebody,l and a protective -strip of paper pulp composition on the sideedge of the board, the edges of the side coverings roecting the body andtie strip the body the side coverings.

beyond the edge ofbeing arranged upon and between and uponthe edges ofCALEB PAYNE. Y.

